

If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage (VCC) Voltage at Inputs and Outputs Input Current at Any Pin (Note 4) Package Input Current (Note 4) Power Dissipation 25 C (Note 5) ESD Susceptibility (Note 6) Soldering Information N Package (10 sec ) TSSOP and SO Package (Note 7) Vapor Phase (60 sec ) Infrared (15 sec ) Storage Temperature 6 5V TRI-STATE is a registered trademark of National Semiconductor Corporation COPSTM microcontrollers and MICROWIRETM are trademarks of National Semiconductor Corporation C1995 National Semiconductor Corporation 11015 RRD-B30M75 Printed S A


Resolution 8 Bits Conversion time (fC e 4 MHz) 2 ms (Max) Power dissipation 20 mW (Max) Single supply 5 VDC 5%) g Total unadjusted error LSB and g 1 LSB g Linearity Error (VREF 2 5V) LSB No missing codes (over temperature) 1 5% (Max) On-board Reference High-speed data acquisition Digitizing automotive sensors Process control monitoring Remote sensing in noisy environments Disk drives Portable instrumentation Test systems Serial digital data link requires few I O pins Analog input track hold function or 8-channel input multiplexer options with address logic On-chip 2 5V band-gap reference g 2% over temperature guaranteed) No zero or full scale adjustment required TTL CMOS input output compatible to 5V analog input range with single 5V power supply Pin compatible with Industry-Standards 4 8 The ADC08234 ADC08238 are 8-bit successive approximation A D converters with serial I O and configurable input multiplexers with to 8 channels The serial O is configured to comply with the NSC MICROWIRE TM serial data exchange standard for easy interface to the COPSTM family of controllers and can easily interface with standard shift registers or microprocessors Designed for high-speed low-power applications the devices are capable of a fast 2 ms conversion when used with a 4 MHz clock All three devices provide 2 5V band-gap derived reference with guaranteed performance over temperature A track hold function allows the analog voltage at the positive input to vary during the actual A D conversion The analog inputs can be configured to operate in various combinations of single-ended differential or pseudo-differential modes In addition input voltage spans as small as 1V can be accommodated 2 ms Serial Converters with MUX Reference and Track Hold
